public ListStringView()
{
InitializeComponent();
SourceData = new List <object>();
IndexChoosenElementSourceData = 0;
IndexCurrentFirstVisibleElementSourceData = 0;
borderColor = Brushes.DarkGray;
shadowColor = Brushes.Black;
this.vScrollBar.Minimum = 0;
this.vScrollBar.Maximum = 0;
//по-умолчанию
this.blockSize = new BlockSizeTemplate(20, new List <int>()
{
50, 50
});
this.headerTemplate = new DataListTemplate(new ViewTemplate(Brushes.White, "Arial", 12, Brushes.Black), new List <string>()
{
"NoNe", "NoNe"
});
}
protected override void OnRender(DrawingContext drawingContext)
{
base.OnRender(drawingContext);
Size DrawSize = new Size(this.RenderSize.Width - this.vScrollBar.RenderSize.Width, this.RenderSize.Height - this.hScrollBar.RenderSize.Height);
Rect DrawRect = new Rect(new Point(0, 0), DrawSize);
hScrollBar.Maximum = ((this.blockSize.FullWidth - DrawSize.Width) >= 0) ? this.blockSize.FullWidth - DrawSize.Width : 0;
if (hScrollBar.Maximum == hScrollBar.Minimum)
{
hScrollBar.IsEnabled = false;
}
else
{
hScrollBar.IsEnabled = true;
}
drawingContext.DrawRectangle(Brushes.White, null, DrawRect);
drawingContext.PushClip(new RectangleGeometry(DrawRect));
//отрисовка заголовка
Point curLocCell = new Point(0, 0);
curLocCell.X = -this.hScrollBar.Value;
drawingContext.DrawRectangle(this.HeaderTemplate.ViewT.ColorBackground, null, new Rect(curLocCell, new Size(this.BlockSize.FullWidth, this.blockSize.Height)));
for (int i = 0; i < this.blockSize.ListColumnWidth.Count; i++)
{
Rect cellRect = new Rect(new Point(curLocCell.X + 1, curLocCell.Y + 1), new Size(this.blockSize.ListColumnWidth[i] - 2, this.blockSize.Height - 2));
drawingContext.DrawRectangle(null, new Pen(BorderColor, 1), cellRect);
DrawBoldTxt(drawingContext, this.HeaderTemplate.ListColumnText[i], cellRect, this.HeaderTemplate.ViewT.FontColor,
new Typeface(this.HeaderTemplate.ViewT.FontName), this.HeaderTemplate.ViewT.FontSize - 2);
curLocCell.X += this.blockSize.ListColumnWidth[i];
}
//отрисовка строк
int MaxIndex = (int)(DrawSize.Height / this.blockSize.Height) + this.IndexCurrentFirstVisibleElementSourceData;
curLocCell.Y += this.blockSize.Height;
curLocCell.X = -this.hScrollBar.Value;
for (int j = this.IndexCurrentFirstVisibleElementSourceData; j < MaxIndex; j++)
{
if (this.SourceDataElementConvert == null)
{
return;
}
if ((j >= this.SourceData.Count) || (j < 0))
{
break;
}
DataListTemplate currentItem = this.SourceDataElementConvert(SourceData[j], j);
drawingContext.DrawRectangle(currentItem.ViewT.ColorBackground, null, new Rect(curLocCell, new Size(this.BlockSize.FullWidth, this.blockSize.Height)));
Point shadowLocPt = curLocCell;
//отрисовка одной строки
for (int i = 0; i < this.blockSize.ListColumnWidth.Count; i++)
{
Rect cellRect = new Rect(curLocCell, new Size(this.blockSize.ListColumnWidth[i], this.blockSize.Height));
drawingContext.DrawRectangle(null, new Pen(BorderColor, 1), cellRect);
//форматируем текст для рисования
FormattedText txt = new FormattedText(currentItem.ListColumnText[i],
CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface(currentItem.ViewT.FontName),
currentItem.ViewT.FontSize, currentItem.ViewT.FontColor);
txt.MaxTextWidth = cellRect.Width;;
txt.MaxTextHeight = cellRect.Height;
txt.TextAlignment = TextAlignment.Justify;
//рисуем текст
drawingContext.DrawText(txt, cellRect.Location);
curLocCell.X += this.blockSize.ListColumnWidth[i];
}
//отрисовка тени
if (j == IndexChoosenElementSourceData)
{
drawingContext.PushOpacity(0.5);
drawingContext.DrawRectangle(this.shadowColor, null, new Rect(shadowLocPt, new Size(this.BlockSize.FullWidth, this.blockSize.Height)));
drawingContext.Pop();
}
curLocCell.X = -this.hScrollBar.Value;
curLocCell.Y += this.blockSize.Height;
}
}
